21494814

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:377

約数の個数: 64

約数和(自身を含む): 50353920

約数和(自身を除く): 28859106

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 57, 61, 66, 114, 122, 183, 209, 281, 366, 418, 562, 627, 671, 843, 1159, 1254, 1342, 1686, 2013, 2318, 3091, 3477, 4026, 5339, 6182, 6954, 9273, 10678, 12749, 16017, 17141, 18546, 25498, 32034, 34282, 38247, 51423, 58729, 76494, 102846, 117458, 176187, 188551, 325679, 352374, 377102, 565653, 651358, 977037, 1131306, 1954074, 3582469, 7164938, 10747407, 21494814]

約数ペア:

[(1, 21494814), (2, 10747407), (3, 7164938), (6, 3582469), (11, 1954074), (19, 1131306), (22, 977037), (33, 651358), (38, 565653), (57, 377102), (61, 352374), (66, 325679), (114, 188551), (122, 176187), (183, 117458), (209, 102846), (281, 76494), (366, 58729), (418, 51423), (562, 38247), (627, 34282), (671, 32034), (843, 25498), (1159, 18546), (1254, 17141), (1342, 16017), (1686, 12749), (2013, 10678), (2318, 9273), (3091, 6954), (3477, 6182), (4026, 5339)]